Nobody in the NBA is getting suspended for having THC in their system dude. Come on now.

Yes you can get suspended, if it is detected multiple times.

Quote:

If a player tests positive for marijuana for the first time during Reasonable Cause Testing, First-Year Testing, or Veteran Testing, or he is convicted of, or pleads guilty, nolo contendre or no contest to, the use or possession of marijuana in violation of the law, he will be required to enter the program. A second such violation will result in a $15,000 fine and the player's re-entry into the program. A third (or any subsequent) such violation will result in a five-game suspension and the player's re-entry into the program.